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FCD-24 Integrating E1 Multiplexer
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• Integrates high speed data
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with a PABX E1 link into E1 or Fractional E1 services Two or four data channels, optional E1 sub-link V.35, X.21, RS-530 or V.36/RS-449 interfaces Sync data rate: n x 64 kbps Selectable 2 or 16 frames per multiframe with CRC-4 support Multiple clock sources Setup and control via front panel or supervisory port Complies with ITU-T G.703, G.704 and G.732 Dial-out on alarm events Can be used as a multi-channel short range modem
DESCRIPTION
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Order from: Cutter Networks
The FCD-24 is an Integrating Multiplexer for E1 and Fractional E1 services. Two or four synchronous data channels and one E1 sub-link can be connected over the public E1 network, while paying only for the bandwidth required. The E1 sub-link enables PABX connection to the E1 interface. Four FCD-24 models are available:(see Ordering) FCD-24 with four synchronous data channels; FCD-24/E1 with four synchronous data channels and one E1 sub-link; FCD-24-2 with two synchronous data channels; FCD-24-2/E1 with two synchronous data channels and one E1 sub-link. Data rates are selectable for any multiple of 64 kbps. Selectable timeslotting places data into timeslots (DSOs) either consecutively (bundled), or by user-definition (without restrictions). Selected timeslots on the E1 sub-link are bypassed to the same timeslots on the E1 main link. Data channel interfaces available are V.35, X.21, RS-530 or V.36/RS-449. (V.36/RS-449 is converted from RS-530 via cables supplied with V.36 interface option - see Ordering.) The FCD-24 is compatible with virtually all carrier-provided E1 services, meeting all
Ph:727-398-5252/Fax:727-397-9610
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requirements of ITU-T G.703, G.704 and G.732. It supports 2 or 16 frames per multiframe, with or without CRC-4. Zero suppression over the line is HDB3. An optional integral LTU (Line Termination Unit) supports ranges up to 1.6 km (1 mile), enabling the FCD-24 to be used as a multi-channel short range modem for private applications. Multiple clock source selection allows the E1 main link to be clocked from the recovered clock (LBT), from the data channel source, from E1 sublink, or from an internal oscillator. Data channels may be set to DCE (FCD-24 provides RX and TX clocks to user equipment), DTE1 (FCD-24 provides RX clock to user, while TX clock is received from user) or DTE2 (both clocks received from user) clocking modes. The E1 sub-link transmit clock is locked to the E1 main link clock. The receive clock can be used as an external clock source for the E1 main link transmit clock. Setup, control and monitoring of status and diagnostic information can be activated from the front panel or via a terminal or PC connected to the supervisory port. Remote line diagnostics, alarm information, unit configuration and other control/monitoring information can be accessed remotely via dial-up modems. Maintenance capabilities include local and remote loopbacks at various points, as well as built-in BERT for rapid identification of faults. For dial-out operation, the FCD-24 activates the modem to automatically dial a pre-programmed number whenever an alarm event occurs.
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FCD-24 Integrating E1 Multiplexer SPECIFICATIONS E1 MAIN AND SUB-LINKS • Bit Rate 2.048 Mbps • Framing Selectable: 16 or 2 frames per multiframe, with or without CRC-4 Note: CRC-4 available for main link only • Line Code HDB3 • Impedance Selectable: 120Ω, balanced 75Ω, unbalanced • Signal Levels Receive: 0 to -33 dB, with LTU 0 to -10 dB, without LTU Transmit: Balanced: ±3 V, ±10% Unbalanced: ±2.37 V, ±10% • Signal Levels Receive: 0 to -10 dB Transmit: ±3 V, (±10%) soft-adjustable to be measured at 0-655 feet • Jitter Performance As per ITU-T G.823 • Transmit Timing Soft-selectable: Internal: ±32 ppm Receive Timing: ±50 ppm External Timing: ±100 ppm, from data channel or E1 sub-link source • Connectors 15-pin D-type, female, balanced Two BNC coaxial, unbalanced
APPLICATION
DATA CHANNELS Interface V.35, X.21, RS-530 or V.36/RS-449 (converted from RS-530 via supplied cables) • Connectors V.35: 34-pin, female X.21: 15-pin D-type, female RS-530: 25-pin D-type, female V.36/RS-449 (on conversion cables): 37-pin D-type, female • Bit Rate n x 64 kbps (n = 1 to 31) • Clock Modes DCE: FCD-24 provides RX and TX clocks to user DTE; DTE1: FCD-24 provides RX to user while receiving TX clock from user; DTE2: FCD-24 receives both RX and TX clocks from user DCE. • Control Signals Support RTS, CTS, DCD, DSR Support C, I (X.21) GENERAL • Timeslot Allocation Selectable: Consecutive (bundled) User-defined (no restrictions) • Diagnostics E1 main link loopback Data channel loopback E1 sub-link loopback BERT through remote FCD-24 • Statistics and Alarms OOS (Out-Of-Sync) counter CRC-4 error counter Alarm buffer size: 100 events • Supervisory Port Interface: V.24/RS-232, async Connector: 9-pin D-type, female Speed: 0.3 to 9.6 kbps, autobaud Dial-out: Alarm event activated
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Power 115 or 230 VAC (±10%) 47 to 63 Hz, 25W Indicators Main and Sub-links: Local and remote sync loss; Per channel: TD, RD; TEST Physical Depth: 24.3 cm / 9.5 in Width: 43.2 cm / 17.0 in Height: 4.3 cm / 1.7 in (1U) Weight: 2.3 kg / 5.0 lb Environment Temperature: 0-45°C/32-113°F Humidity: Up to 90%, non-condensing
ORDERING FCD-24/*/#/& Integrating E1 Multiplexer with 4 channels FCD-24-2/*/#/& Integrating E1 Multiplexer with 2 channels *
Specify E1 for E1 sub-link (default is without sub-link)
# Specify data channels interface: V35 for V.35 interface (default) X21 for X.21 interface 530 for RS-530 interface V36 for V.36/RS-449 interface (via supplied conversion cables) & Specify LTU for integral LTU (default is without LTU)
214-100-05/98
1998 RAD Data Communications Ltd. Order from: Cutter Networks
Ph:727-398-5252/Fax:727-397-9610
Specifications are subject to change without prior notice. www.bestdatasource.com
